#include<stdio.h>
#include<unistd.h>

int main()
{
  pid_t id=fork();
  if(id==0)
  {
    while(1)
    {
      printf("我是子进程：pid=%d  ppid=%d\n",getpid(),getppid());
      sleep(1);
    }
  }
  else
  {
    int count=10;
    while(1)
    { 
      printf("我是父进程：pid=%d  ppid=%d\n",getpid(),getppid());
      sleep(1);
      if(count--<=0)
      {
        break;
      }
    }
  }
  return 0;
}
